2- Salam bin Abil Haqiq
Killed on the orders of Mohammad because he lobbied the different tribes to wage a war against Muhammad in the battle of Al Ahzab.
https://ar.wikipedia.org/wiki/%D8%B3%D9%84%D8%A7%D9%85_%D8%A8%D9%86_%D8%A3%D8%A8%D9%8A_%D8%A7%D9%84%D8%AD%D9%82%D9%8A%D9%82
https://www.al-islam.org/the-message-ayatullah-jafar-subhani/chapter-37-battle-ahzab

4- Abu ‘Afak Al Yahoudi
A 120 year old Jewish poet, said to have written poems against Muhammad, was killed on a hot night while sleeping on a porch outside his house.
https://ar.wikipedia.org/wiki/%D8%A3%D8%A8%D9%88_%D8%B9%D9%81%D9%83_%D8%A7%D9%84%D9%8A%D9%87%D9%88%D8%AF%D9%8A

5- Umm Qirfa Fatima
A woman of great influence, she instigated the tribes to try and kill Muhammad. Muhammad sent a group of his men to kill her. She was killed by splitting her body in two by tying her legs to two different camels running in opposite directions
https://ar.wikipedia.org/wiki/%D8%A3%D9%85_%D9%82%D8%B1%D9%81%D8%A9_%D8%A7%D9%84%D9%81%D8%B2%D8%A7%D8%B1%D9%8A%D8%A9
https://wikiislam.net/wiki/The_Story_of_Umm_Qirfa
http://muhammadanism.com/Muhammad/Ripped_Apart.htm

6- Amr ibn Hisham or Abu Jahl
‘Amr ibn Hishām showed relentless animosity to Muhammad and rejected his message. Therefore Muhammad referred him as Abu Jahl (أبو جهل’) (“Father of Ignorance”) He was killed by two sixteen year old boys in the battle of Badr.
https://ar.wikipedia.org/wiki/%D8%A3%D8%A8%D9%88_%D8%AC%D9%87%D9%84
http://www.answering-islam.org/Index/J/abu_jahl.html
https://en.wikipedia.org/wiki/Amr_ibn_Hish%C4%81m

7-النضر بن الحارث بن علقمة بن كلدة بن عبد مناف
احد اشد معارضي محمد وقد امضى معظم ايامه في تحذير قريش من تعاليم محمد. سافر الى شمال الجزيره العربيه ليتعلم من اليهود والنصارى قصص الاولين. عاد الى مكه بعد ان تعلم من اليهود والنصارى وقص هذه القصص على اهل قريش وقال بما انه يستطيع ان يخبر عن الناس الاولين فانه نبي. قتله علي ابن ابي طالب بعد معركة بدر
7- Al Nadr Bin al-Harith
One of most fierce opponents of Muhammad, Al Nadr Bin al-Harith spent most of his days warning Quraysh against Muhammad’s teachings. He traveled to the northern part of the Arabian peninsula to learn the stories of the Christians and the Jews. He came back with those stories that he learned and recited them to the people of Quraysh and declared that since he can tell stories of the people who came before us, he must be a prophet just like Muhammad. He was killed by Ali bin Abi Talib after the battle of Badr.
http://www.answering-islam.org/Muhammad/Enemies/nadr.html

8- Uqbah ibn Abu Mu‘ay
A nice man who used to sit and talk to Muhammad in Mecca when others shunned Muhammad, Uqbah ibn Abu Mu‘ayṭ was accused of accepting Islam by one of his close friends, and when asked about it, denied it. But his close friend asked him to spit in Muhammad’s face as proof he had not accepted Islam. When Uqbah spit in Muhammad’s face, Muhammad told him that he will cut off his head if he ever see him outside of Mecca. Uqbah’s head was cut off when he was taken prisoner after the battle of Badr.https://ar.wikipedia.orghttps://en.wikipedia.org/wiki/Uqba_ibn_Abu_Mu%27ayt